diff --git a/Sources/CBORDecoder.swift b/Sources/CBORDecoder.swift
index 4e26806..4a8af16 100644
--- a/Sources/CBORDecoder.swift
+++ b/Sources/CBORDecoder.swift
@@ -64,10 +64,12 @@ public class CBORDecoder {
     }
 
     private func readN(_ n: Int) throws -> [CBOR] {
-        return try (0..<n).map { _ in
-            guard let r = try decodeItem() else { throw CBORError.unfinishedSequence }
-            return r
+        var result: [CBOR] = []
+        for _ in 0..<n {
+            guard let item = try decodeItem() else { throw CBORError.unfinishedSequence }
+            result.append(item)
         }
+        return result
     }
 
     func readUntilBreak() throws -> [CBOR] {
diff --git a/Tests/CBORDecoderTests.swift b/Tests/CBORDecoderTests.swift
index 502f8d1..85acbb4 100644
--- a/Tests/CBORDecoderTests.swift
+++ b/Tests/CBORDecoderTests.swift
@@ -121,6 +121,25 @@ class CBORDecoderTests: XCTestCase {
         }
     }
 
+    func testLargeIncorrectUTF8StringShouldThrowNotCrash() throws {
+        // https://github.com/valpackett/SwiftCBOR/issues/118
+        let bytes: [UInt8] = [
+            0x9b,
+            0x54, 0x68, 0x47, 0x9e, 0x98, 0x41, 0xd5, 0xed,
+            0xae, 0x42, 0x4b, 0x9e, 0x68, 0x68, 0x47,
+            0xa0, 0xf0, 0x41, 0xe2, 0xc4, 0x73, 0x42, 0x4f, 0x8c, 0x48, 0x68, 0x47, 0xa3, 0x48, 0x41, 0xe2,
+            0x6c, 0xf2, 0x42, 0x3f, 0x1b, 0x3c, 0x68, 0x47, 0xa5, 0xa0, 0x41, 0xe1, 0xce, 0x5a, 0x42, 0x3d,
+            0x71, 0x74, 0x68, 0x47, 0xa7, 0xf8, 0x41, 0xe2, 0x57, 0x12, 0x42, 0x3b, 0x54, 0x6c, 0x68, 0x47,
+            0xaa, 0x50, 0x41, 0xe4, 0x17, 0x84, 0x42, 0x40, 0x6d, 0x24, 0x68, 0x47, 0xac, 0xa8, 0x41, 0xe0,
+            0xa1, 0x91, 0x42, 0x41, 0xef, 0xdc, 0x68, 0x47, 0xaf, 0x0, 0x41, 0xd8, 0x93, 0xd0, 0x42, 0x48,
+            0xfa, 0xa0, 0x68, 0x47, 0xb1, 0x58, 0x41, 0xd5, 0x5a, 0x5, 0x42, 0x4e, 0xfd, 0xb4, 0x68, 0x47,
+            0xb3, 0xb0, 0x41, 0xd4, 0x43, 0x1c, 0x42, 0x50, 0x57, 0x6c, 0x68, 0x47, 0xb6, 0x8, 0x41, 0xd3
+        ]
+        XCTAssertThrowsError(try CBOR.decode(bytes)) { error in
+            XCTAssertEqual(error as? CBORError, CBORError.incorrectUTF8String)
+        }
+    }
+
     func testDecodeMapFromIssue29() {
         let loremIpsumData: [UInt8] = [0x4c, 0x6f, 0x72, 0x65, 0x6d, 0x20, 0x69, 0x70, 0x73, 0x75, 0x6d, 0x20, 0x64, 0x6f, 0x6c, 0x6f, 0x72, 0x20, 0x73, 0x69, 0x74, 0x20, 0x61, 0x6d, 0x65, 0x74, 0x2c, 0x20, 0x63, 0x6f, 0x6e, 0x73, 0x65, 0x63, 0x74, 0x65, 0x74, 0x75, 0x72, 0x20, 0x61, 0x64, 0x69, 0x70, 0x69, 0x73, 0x63, 0x69, 0x6e, 0x67, 0x20, 0x65, 0x6c, 0x69, 0x74, 0x2e, 0x20, 0x51, 0x75, 0x69, 0x73, 0x71, 0x75, 0x65, 0x20, 0x65, 0x78, 0x20, 0x61, 0x6e, 0x74, 0x65, 0x2c, 0x20, 0x73, 0x65, 0x6d, 0x70, 0x65, 0x72, 0x20, 0x75, 0x74, 0x20, 0x66, 0x61, 0x75, 0x63, 0x69, 0x62, 0x75, 0x73, 0x20, 0x70, 0x68, 0x61, 0x72, 0x65, 0x74, 0x72, 0x61, 0x2c, 0x20, 0x61, 0x63, 0x63, 0x75, 0x6d, 0x73, 0x61, 0x6e, 0x20, 0x65, 0x74, 0x20, 0x61, 0x75, 0x67, 0x75, 0x65, 0x2e, 0x20, 0x56, 0x65, 0x73, 0x74, 0x69, 0x62, 0x75, 0x6c, 0x75, 0x6d, 0x20, 0x76, 0x75, 0x6c, 0x70, 0x75, 0x74, 0x61, 0x74, 0x65, 0x20, 0x65, 0x6c, 0x69, 0x74, 0x20, 0x6c, 0x69, 0x67, 0x75, 0x6c, 0x61, 0x2c, 0x20, 0x65, 0x75, 0x20, 0x74, 0x69, 0x6e, 0x63, 0x69, 0x64, 0x75, 0x6e, 0x74, 0x20, 0x6f, 0x72, 0x63, 0x69, 0x20, 0x6c, 0x61, 0x63, 0x69, 0x6e, 0x69, 0x61, 0x20, 0x71, 0x75, 0x69, 0x73, 0x2e, 0x20, 0x50, 0x72, 0x6f, 0x69, 0x6e, 0x20, 0x73, 0x63, 0x65, 0x6c, 0x65, 0x72, 0x69, 0x73, 0x71, 0x75, 0x65, 0x20, 0x64, 0x75, 0x69, 0x20, 0x61, 0x74, 0x20, 0x6d, 0x61, 0x67, 0x6e, 0x61, 0x20, 0x70, 0x6c, 0x61, 0x63, 0x65, 0x72, 0x61, 0x74, 0x2c, 0x20, 0x69, 0x64, 0x20, 0x62, 0x6c, 0x61, 0x6e, 0x64, 0x69, 0x74, 0x20, 0x66, 0x65, 0x6c, 0x69, 0x73, 0x20, 0x76, 0x65, 0x68, 0x69, 0x63, 0x75, 0x6c, 0x61, 0x2e, 0x20, 0x4d, 0x61, 0x65, 0x63, 0x65, 0x6e, 0x61, 0x73, 0x20, 0x61, 0x63, 0x20, 0x6e, 0x69, 0x73, 0x6c, 0x20, 0x61, 0x20, 0x6f, 0x64, 0x69, 0x6f, 0x20, 0x76, 0x61, 0x72, 0x69, 0x75, 0x73, 0x20, 0x63, 0x6f, 0x6e, 0x64, 0x69, 0x6d, 0x65, 0x6e, 0x74, 0x75, 0x6d, 0x20, 0x6c]
         let data: [UInt8] = [0xbf, 0x63, 0x6f, 0x66, 0x66, 0x00, 0x64, 0x64, 0x61, 0x74, 0x61, 0x59, 0x01, 0x2c]